// JavaScript Document
//load image from thumbnail
function loadImg(num)
{
	imageNum = num;
	document.getElementById('mainImage').src = '/gallery/'+images[imageNum];
}

Array.prototype.inArray = function(valeur) {
for (var i in this) { if (this[i] === valeur) return i; }
return -1;
}

//load image from prev button
function getImagePrev()
{
	if(images.inArray(images[imageNum-1])!=-1)
	{
		imageNum--;
		document.getElementById('mainImage').src = '/gallery/'+images[imageNum];
	}
}

//load image from next button
function getImageNext()
{
	if(images.inArray(images[imageNum])!=-1)
	{
		imageNum++;
		document.getElementById('mainImage').src = '/gallery/'+images[imageNum];
	}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	    init();
	}
}